Self-Test C-1.1: Types of Fixtures and Trim

Complete Self-Test C-1.1 and check your answers.

1. What best defines a plumbing fixture?
   1. Made entirely of cast iron
   2. Difficult to clean
   3. Discharges sewage or clear-water waste
   4. Must be connected to a hot water supply line

    

2. What common fixture material — although sanitary and easy to clean — is delicate and must be handled with care?
   1. Vitrified porcelain
   2. Polyester resin
   3. ABS
   4. Stainless steel

    

3. In the production of fixtures, what material is the most difficult to form?
   1. Vitrified porcelain
   2. Stainless steel
   3. Polyester resin
   4. Acrylic plastic

    

4. What process includes firing (heating) a porcelain mixture and glaze to temperatures up to 1,400°C?
   1. Vitrification
   2. Moulding
   3. Tempering
   4. Passivating

    

5. Steel fixtures are generally less expensive and less durable than cast-iron fixtures.
   1. True
   2. False

    

6. What material is often used for manufacturing valve parts because of its high resistance to corrosion?
   1. Vitrified porcelain
   2. Acrylic plastic
   3. Polyester resin
   4. Brass

    

7. What are water closets most commonly made from?
   1. Vitrified porcelain
   2. Acrylic plastic
   3. Stainless steel
   4. Enamelled steel

    

8. What process is used to produce acrylic plastic fixtures?
   1. Vacuum forming
   2. Cold bending
   3. Forging
   4. Casting

    

9. In which of the following would stainless steel most commonly be found?
   1. Water closets
   2. Faucets
   3. Bathtubs
   4. Institutional fixtures

    

10. Why do all plumbing codes require that every fixture have a hard, corrosion-resistant surface?
    1. They are easy to install.
    2. Products will be extremely lightweight.
    3. They cannot be chipped or scratched.
    4. They can be kept sanitary.

     

11. What is the primary function of a lavatory (basin)?
    1. Washing dishes
    2. Scrubbing vegetables
    3. Washing hands and face
    4. Washing clothes

     

12. What is the name of a fixture that supplies potable water for drinking?
    1. Water fountain
    2. Lavatory
    3. Drink station
    4. Bidet

     

13. What is a bathtub surrounded by walls on three sides known as?
    1. Pedestal
    2. Recessed
    3. Sunken
    4. Peninsular

     

14. What is the maximum water temperature permitted for a bathtub or shower head?
    1. 40°C
    2. 49°C
    3. 52°C
    4. 60°C

     

15. Why might a kitchen sink not have a concealed overflow?
    1. Backflow could occur.
    2. It is too difficult to install.
    3. It might trap food waste.
    4. Loss of trap seal could occur.

     

16. What fixture is especially popular in Europe and is designed for washing the genital areas?
    1. Bum bath
    2. Water closet
    3. Bidet
    4. Sitz bath

     

17. What is used to provide support for wall-hung water closets?
    1. Brackets
    2. Support legs
    3. Carriers
    4. Pedestals

     

18. What is the maximum designed flush cycle for a high-efficiency toilet (HET)?
    1. 13.25 L
    2. 6.0 L
    3. 4.8 L
    4. 2.5 L

     

19. How do water closets prevent sewer gases from entering a washroom?
    1. Integral traps
    2. Drum traps
    3. P-traps
    4. Diaphragms

     

20. Why do blowout water-closet bowl designs not require a water tank?
    1. They are vacuum assisted.
    2. They use air jets.
    3. They use flushometer valves.
    4. They are connected directly to the building drain.

     

21. What control method is often used for hospital fixtures?
    1. Physical operation
    2. Voice command
    3. Manual control
    4. Sensor operation

     

22. Sensor-controlled faucets can reduce water consumption by approximately what percentage?
    1. 10%
    2. 30%
    3. 50%
    4. 70%

     

23. Pressure-balanced showers generally have one control handle, while thermostatically controlled showers usually have two.
    1. True
    2. False

     

24. What fixture is used to clean instruments or glassware with boiling water?
    1. Centrifuge
    2. Boiler
    3. Autoclave
    4. Sanitizer

     

25. What is the primary purpose of an interceptor?
    1. Traps sewer gases
    2. Maximizes project costs
    3. Captures unwanted materials before they can enter the drainage system
    4. Increases the flow of unwanted materials in the drainage system

     

26. What is the maximum permitted length of a [latex]\tfrac{3}{8}[/latex] in. (6.3 mm ID) supply tube for a fixture?
    1. 450 mm
    2. 600 mm
    3. 750 mm
    4. 900 mm

     

27. What is an escutcheon?
    1. Chrome-plated flange
    2. Pop-up plug
    3. Decorative faucet
    4. Water fountain outlet

     

28. The water delivered from a fountain bubbler must be directed upward at approximately what angle?
    1. 30°
    2. 45°
    3. 60°
    4. 90°

     

29. What fixture has waste and overflow fittings?
    1. Bathtub
    2. Faucet
    3. Service sink
    4. Water closet

     

30. What type of faucet is nearly maintenance-free and is more durable under a variety of water conditions than any other faucet?
    1. Cartridge faucet
    2. Stem-and-seat faucet
    3. Ceramic disk faucet
    4. Ball faucet

     

31. What is the maximum permitted flow rate to a shower head?
    1. 13.25 L/min
    2. 9.5 L/min
    3. 6.0 L/min
    4. 2.5 L/min

     

32. Why are hands-free controls more commonly found in public washrooms?
    1. Less expensive
    2. More reliable
    3. More hygienic
    4. Less maintenance

     

33. How do thermostatic control valves achieve a desired output temperature?
    1. Monitor and control temperature and pressure
    2. Measure outlet temperature and controls mixing of hot and cold water
    3. Vary the inlet supply pressure accordingly
    4. Monitor and control hot water supply

     

Answer Key: Self-Test C-1.1 is on the next page.